Coherent was quite impressive for the early 90's! It had some limitations though, the major one being no networking built in. I remember using a 3rd party app (

Coherent was quite impressive for the early 90's! It had some limitations though, the major one being no networking built in. I remember using a 3rd party app (KA9Q, I think?) to give me "user level" networking so I could connect to another system over SLIP. I had an early home network built out of serial cables. Once Linux stabilized, the writing was on the wall...